12515343 has 4 divisors (see below), whose sum is σ = 16687128. Its totient is φ = 8343560.

The previous prime is 12515329. The next prime is 12515359. The reversal of 12515343 is 34351521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34351521 = 3 ⋅11450507.

It is a cyclic number.

It is not a de Polignac number, because 12515343 - 2⁵ = 12515311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12515323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2085888 + ... + 2085893.

It is an arithmetic number, because the mean of its divisors is an integer number (4171782).

Almost surely, 2^12515343 is an apocalyptic number.

12515343 is a deficient number, since it is larger than the sum of its proper divisors (4171785).

12515343 is an equidigital number, since it uses as much as digits as its factorization.

12515343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4171784.

The product of its digits is 1800, while the sum is 24.

The square root of 12515343 is about 3537.7030683764. The cubic root of 12515343 is about 232.1743573867.

Adding to 12515343 its reverse (34351521), we get a palindrome (46866864).

The spelling of 12515343 in words is "twelve million, five hundred fifteen thousand, three hundred forty-three".